{
  "manageEntity": {
    "action": "Create",
    "entityId": "188156972",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"genre\":\"Pop\",\"isrc\":\"QZLRC2693268\",\"is_stream_gated\":true,\"stream_conditions\":{\"usdc_purchase\":{\"price\":100,\"splits\":[{\"user_id\":302766860,\"percentage\":100}]}},\"is_download_gated\":true,\"download_conditions\":{\"usdc_purchase\":{\"price\":100,\"splits\":[{\"user_id\":302766860,\"percentage\":100}]}},\"release_date\":\"2026-06-13T00:00:00.000Z\",\"title\":\"「仮面の裏に」(Behind the Mask)\",\"preview_start_seconds\":0,\"is_downloadable\":true,\"ddex_release_ids\":{\"icpn\":\"1963624702004\",\"proprietary_id\":\"8739fd97-baef-4ec9-a8da-4c9effcbd85e\"},\"ddex_app\":\"0x6C1EF2E9c33E2ba1c0d352e41e06e8a3C7721C6f\",\"artists\":[{\"name\":\"Emaxulate\",\"roles\":[\"MainArtist\"]}],\"resource_contributors\":[],\"indirect_resource_contributors\":[],\"rights_controller\":{\"name\":\"Celeste Ai\",\"roles\":[\"RightsController\"]},\"copyright_line\":null,\"producer_copyright_line\":{\"year\":\"2026\",\"text\":\"Celestial Universe\"},\"parental_warning_type\":\"NotExplicit\",\"owner_id\":302766860,\"field_visibility\":{\"genre\":true,\"mood\":true,\"tags\":true,\"share\":true,\"play_count\":true},\"track_segments\":[],\"track_cid\":\"baeaaaiqseazpwzvmrc5dwigcwtko5m4k66f6zbeyhgryo76fpbpzla4dyjyna\",\"preview_cid\":\"baeaaaiqsecxfyi2tmmdkjvcfj4wqbwu3kgh2lz3zds5ul32hk4eav5fc6xb7w\",\"orig_file_cid\":\"baeaaaiqseaw5dlpxiw7sr5k5ufbujb65mipdc6skgiktc3ybwpak46opgzcgw\",\"orig_filename\":\"Behind the Mask-23ef9f54-67f4-4a6a-85cd-d5d2fc2f6bee.mp3\",\"audio_upload_id\":\"01KTZ4M0SHM4HHNSXEGBXXM3P5\",\"cover_art_sizes\":\"01KTZ4KYP3HZ12YWCX1JJGEM3Y\",\"duration\":294,\"bpm\":109,\"musical_key\":\"E flat major\",\"audio_analysis_error_count\":0}}",
    "nonce": "0x6238c75ac833dc03310cd81d1e5d213dff56d82cfeefbc8dd7c5964a56e27c68",
    "signature": "0xa7158001df665e475b13538f9921ac428f2e092edea0ced20a72bffee7459c77319df81c3e8b19af262167ca7914329a055637a93c15cb2befa9bb1b93f7df061c",
    "signer": "0x6C1EF2E9c33E2ba1c0d352e41e06e8a3C7721C6f",
    "userId": "302766860"
  }
}